PHONETIC GESTURES AND THEIR PERCEPTION

该项目的一个主要目的是继续发展我们的理论 根据语音的语音手势， 道是音系的基本单位，最小的 言语产生的单位和言语的最小可感知单位 留言该 一种言语感知理论， 与音系学和言语产生的理论相一致，我们 认为，一个更强的要求现实主义比那些发展不受约束， 这些方式。 在提案的第一部分，我们提出对演讲的研究 生产和感知，旨在开发Browman和Goldstein的 发音音系学理论沿着两条主线。 首先，我们测试一个 在理论中，手势单位而不是特征单位作为 对比语言。 第二，我们关注的原则， 是相对定时的，以形成语言的音节。 在第二 在建议的第一节中，我们解决了对我们观点的一个主要挑战， 发音音位学的语音手势被感知， 一种被解释为表明说话者不试图 实现发音目标，而是声学目标。 如果是这种 案件，那么就没有理由我们的建议，听众听到 手势目标 在第三部分中，我们提出了实验来测试 我们直接认为，手势，而不是声音定义的语音， 信息由收听者从声学语音信号中提取。 一 最后一节建议使用行为测量和fMRI测量， 大脑活动来测试运动理论的主张， 是由人脑中一个专门的语音模块实现的。

A major aim of this project is to continue development of our theoretical perspective on speech, according to which phonetic gestures of the vocal tract are at once the fundamental units of the phonology, the smallest units of speech production and the smallest perceivable units of a speech message. A theory of speech perception that is constrained to be compatible with theories of phonology and of speech production, has, we argue, a stronger claim to realism than ones developed unconstrained in these ways. In the first section of the proposal, we propose research on speech production and perception designed to develop Browman and Goldstein's theory of articulatory phonology along two major lines. First, we test a proposal in the theory that gestural, not featural, units serve as units of contrast in languages. Second, we focus on principles by which gestures are relatively timed to form syllables of the language. In a second section of the proposal, we address a major challenge to our view that athe phonetic gestures of articulatory phonology are perceived that takes the form of evidence interpreted as showing that speakers do not attempt to achieve articulatory targets, but rather, acoustic ones. If that is the case, then there is no justification to our proposal that listeners hear gestural targets. In a third section, we propose experiments to test directly our view that gestures, not acoustically-defined phonetic information, is extracted from the acoustic speech signal by listeners. A final section proposes to use behavioral measures and fMRI measures of brain activity to test a claim of the motor theory that gestural perception is achieved by a specialized phonetic module int he human brain.